Home / 827,385.60-1,241,692.80-329,107.20

Finding the Fourth Proportional to 827,385.60, 1,241,692.80 and 329,107.20

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Solution

The fourth proportional to 827,385.60, 1,241,692.80 and 329,107.20 is: 493,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,385.60 : 1,241,692.80 = 329,107.20 : x
  2. Step 2: Convert to fraction form
    827,385.60/1,241,692.80 = 329,107.20/x
  3. Step 3: Cross multiply
    827,385.60x = 1,241,692.80 × 329,107.20
  4. Step 4: Simplify right side
    827,385.60x = 408,650,040,668.16
  5. Step 5: Solve for x
    x = 408,650,040,668.16/827,385.60
  6. Step 6: Final answer
    x = 493,905.19

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.